AutoCodes – Generic – B2464

B2464 Code - Auxiliary Heater Start Time Exceeded

Quick Answer

The Powertrain Control Module (PCM) monitors the Auxiliary Heater. Common causes include Faulty Auxiliary Heater, Auxiliary Heater harness is open or shorted, Auxiliary Heater circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B2464 indicates Auxiliary Heater Start Time Exceeded.
Common causes: Common causes include Faulty Auxiliary Heater, Auxiliary Heater harness is open or shorted, Auxiliary Heater circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 6,768

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Dec 09, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2464 Description

The Powertrain Control Module (PCM) monitors the Auxiliary Heater. The PCM sets the OBDII code when the Auxiliary Heater is not to factory specifications.

OBDII Code B2464 - Auxiliary Heater Start Time Exceeded - AutoCodes.com — B2464 Code - Auxiliary Heater Start Time Exceeded

What does this mean?

What are the Possible Causes of the DTC B2464?

Faulty Auxiliary Heater
Auxiliary Heater harness is open or shorted
Auxiliary Heater circuit poor electrical connection

How to Fix the DTC B2464?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2464 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B2464 code?

Need more information on how to fix the B2464 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2464 code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B2464 Code

1. What are the common symptoms of OBDII code B2464 - Auxiliary Heater Start Time Exceeded?

- The common symptoms include extended engine warm-up time, lack of heat in the cabin, and potential warning lights on the dashboard.

2. What are the possible causes of OBDII code B2464?

- The code B2464 can be triggered by a faulty auxiliary heater, issues with the heater control module, wiring problems, or a malfunctioning temperature sensor.

3. How can I diagnose the OBDII code B2464?

- Diagnosing the code involves using a scan tool to retrieve the code, checking the auxiliary heater's operation, inspecting the wiring for any damage, and testing the temperature sensor's functionality.

4. What are some repair tips for resolving OBDII code B2464?

- Repair tips may include checking and replacing the auxiliary heater if necessary, testing and replacing the heater control module, repairing any damaged wiring, and calibrating or replacing the temperature sensor.

5. Can I drive my vehicle with OBDII code B2464 active?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure proper heating and prevent potential further damage.

6. How much does it typically cost to repair OBDII code B2464?

- The repair cost for OBDII code B2464 can vary depending on the specific cause of the issue, but it may range from $200 to $600 including parts and labor.

7. Will resetting the OBDII code B2464 make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear after driving the vehicle for a certain period.

8. Can a DIY enthusiast fix OBDII code B2464 at home?

- Depending on the individual's mechanical skills and access to tools, some DIY enthusiasts may be able to diagnose and repair the code B2464 at home. However, electrical issues can be complex, so professional assistance is recommended if unsure.

9. How long does it take to repair OBDII code B2464?

- The repair time for OBDII code B2464 can vary based on the specific cause and the complexity of the repair needed. It may take anywhere from a couple of hours to a full day at the repair shop.

10. Is OBDII code B2464 specific to certain vehicle makes and models?

- OBDII code B2464 related to Auxiliary Heater Start Time Exceeded can be found in various vehicle makes and models equipped with an auxiliary heater system, especially in colder climates.